Spacing-table.



No. 799,302. PATENTED SEPT. 12, 1905.

' A. CLARKE.

' SPAOING TABLE.

APPLICATION FILED JUNE 8, 1905.

2 SHEETS-SHEET 1.

71 17 6 n. c J'Je 5 710 672 o-71 fifiiyw W W UNITED STATES ARTHUR CLARKE, OF GLENVILLE, OliIO, ASSIGNOR TO 'llIlC IUNH BRIDOF I PATENT (armpit;

COMPANY, OF CLEVELAND, OHIO, A ()ORPORAIION OF OHIO.

SPAClNG-TABLE.

Specification of Letters Patent.

Patented Sept. 12, 1905.

Application filed June 8, 1905. Serial No. 264.243.

Ohio, have invented a certain new and useful Improvement in Spacing-Tables, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to spacing-tables for use in connection with various machine-toolsas punching-machines or drill-presses, for example.

The invention is an improvement on the spacing-table shown in my prior patent, No. 739,060; and its object is to endow the table with capacity for a finer or more accurate spacing and with greater ease in shifting.

The invention consists of the means to these ends illustrated in the drawings hereof and more fully hereinafter described.

In the drawings, Figure 1 is a side elevation of the table, showing a piece of the stock clamped thereon. Fig. 2 is an end view of the table, the supporting-tracks appearing in cross-section. Fig. 3 is a plan of the stopplate carried by the supporting part of the table. Fig. 4 is a cross-section on the line 4 4 of Fig. 3. I

Referring to the parts by letters, A A represent the tracks upon which the table is mounted, these tracks being shown as consisting of channel-beams connected together by cross-channels A. Secured to the outer side of the channel-beam A is an angle member B, the horizontal surface of which constitutes I the stop-plate, as hereinafter stated;

Mounted on wheels C, which travel upon the tracks A A, is the carriage C. This carriage is made of suitably-braced plates. It has a longitudinal bar D, which carries the clamping device D for the stock Z. This clamping device consistsof a pair of tongs,

made by the member D, and an additional bar D pivoted thereto and a suitable screw D mounted in the bar D and having a swiveled connection, as shown at d, with the inner end of the bar D This connection is not only swiveledybut has an interposed link d to accommodate the circular swing of bar D A suitable jamb-nut (Z locks the screw when the stock has been clamped. By this means the stock may be quickly grasped and securely of a bolt of suflicient size.

held to the table as the latter is moved along to present the stock to the tool.

' Secured to one side of the carriage are two vertical angle-plates c and u. These plates guide a blade E, which is connected by links with an operating-lever l Pins r, cxtend ing across the angle-plates c and (1' through slots 1/ in the blade. hold the blade in place, while allowing it an up-and-down movement under the influence of a lever F. A counterweightfnear the end of the lever serves to maintain the blade (2 normally elevated;

Formed inthe upper surface of the stopplate B are several longitudinal rows of holes 5. These holes are adapted to receive bolts G, which may constitute or hold abutments to be engaged by the blade E when lowered, where by the table may be stopped at desired points.

.As shown in my prior patent referred to, the holes 7) are placed in each row as close together as may be conveniently done without unduly weakening the plate. In practice about an inch from center to center is as close as the holes should be made, allowing the use By employing several rows of holes staggered with relation to each other the distance between stopping-- points may be cut down.' I have found that four rows of holes may be employed, the centers in each row being shifted forward aquarter of an inch. This provides a stop every quarter of an'inch, so that the stock may be fed to within an eighth of an inch one way or the other of the desired point. For some work, however, the arrangement just described is not accurate enough, and I therefore provide blocks H, each having an inclined slot it, through which one of the bolts Ur may pass and adjustably, clamp the block to the plate. The total incline of this slot It is greater than the amount of offset between corresponding holes in adjacent rows, so that the block by being shifted forward or backward may be clamped at any position intermediate of twoholes. This allows the stopping-points to be located just as accurately as desired; The blade E when depressed extends across the various series of holes, so that it engages the block -H directly opposite its clamping-bolt G, wherefore the block has no tendency to turn.

To prevent the carriage from tilting up at the rear, 1 provide brackets J and J. which stop-plate.

carry rollers j, extending onto the under side of the top flanges of the channel-beams A and A? Pivoted to the bracket J is a lever K, extending clown in front of the stops of the v This lever provides means for easily starting the carriage to shift the stock,

the upper end of it simply being' grasped by the operator to draw the carriagealong. The

lever also furnishes means for preventing the carriage recoiling from the stop when very heavy material is beingdrawn along- The operator uses his right handon the lever F and his left hand on the lever K and is thus able to easily feed the stock-and accurately stop it. 1

Having thus described my invention, I claim m1. In aspacing-table, the combination with atravelin'g carriage, a stop-block having an inclined slot whereby it is adapted to be adjustably clamped in place, and a member movable with the carriage and adapted to engage such block. 4

2. In a spacing-table, the combination with a traveling carriage,:a stop-plate, a block hav ving an inclined slot, a bolt for clamping it ad justable to the stop-plate, and a member movable with the carriage and adapted to engage' such block.

3. In a spacing-table, the combination. of

'riage, and means for moving it into suitable trackways, a traveling carriage thereing a series of perforations, blockshaving inclined slots, bolts adapted to occupy such slots and perforations in said plate, a member movably mounted on'the carriage, and means for moving it into position to engage such block.

-5. In aspacing-table, the combination of a suitable support,a carriage adapted to travel thereon, a stop-plate carried by the support,

a member mounted on the carriage and adapted tobe brought. into position to engage a stop on the stop-plate to stopthe carriage, and a pivoted leyer mountedon the. carriage and adapted to engage stopslon the stop-plate to 'move the carriage, or prevent its recoil.

In testimonywhereof I hereunto afliix my signature in thepresence of two, witnesses.

ARTHUR CLARKE.

Witnesses:

E.. B. GILoHRIsT, J. M. WOODWARD. 

